laura joined the hunt. >>reporter: bob is looking for pieces of meteor night mill valley. from one that blazed across bay area sky last night. he drove from battle mountain, nevada this morning. according to his calculation the debris from last night car size meteor likely landed somewhere between mill valley and points north and west. >> the reflection from the stone that stone that fell starts seemed to start here in the mill valley area. it definitely was flying in low and dropped rocks all along a path. maybe even 50 miles north of here. >> all of a sudden the inside of the car got lit up. >>reporter: jerrold saw the meteor fly by in the skies above lafayette. astronomer at the science center in the oakland hills he says finding exactly where the debris landed in the absence of eyewitness accounts could be extremely difficult. >> first of all they look like rock on the ground. second of all they are spread over huge area. i would say the track is probably 10 or 15 miles long. >>reporter: for those looking bob says the pieces are as small as grape or as big as a grapefr